The SquawkBox T-hunt transmitter provides 50 milliwatts of FM-modulated RF at 146 Mhz, on a board measuring 0.9 x 2.4 inches. Includes a voice record/playback chip with 60-second recording capacity, and an integral electret microphone to record a message.

Intended for international ARDF hunts, where multiple transmitters operate ( sequentially ) on a single channel. Crystal timing is essential to prevent transmission "overlaps",
in these hunts.

The MicroHunt is also often employed as a DF "homing beacon" for free-flight balloons. ( for payload recovery after landing ) Some of these flights have exceeded 100,000 feet of altitude, and yielded signal ranges greater than 400 miles.

The MH+30 is a 1 Watt / 146 MHz amplifier for the MicroHunt / SquawkBox transmitters. A modulator circuit is included for A1 ( CW ) and A2 ( MCW ) modes. When used with a MicroHunt CW transmitter, these modes and the 1 Watt power level yields a transmitter that meets ARDF international hunt requirements.

The operating mode ( FM, A1 CW or A2 MCW ) is selected with a strap on the MicroHunt transmitter. The MH+30 and MicroHunt TX can be "stacked" atop each other, yielding a very small package.

The MH+33 is a 2 Watt / 146 MHz amplifier for the MicroHunt / SquawkBox transmitters. An optional modulator circuit is available for A1 ( CW ) and A2 ( MCW ) modes. When used with a MicroHunt CW transmitter, these modes and the 2 Watt power level yields a transmitter that meets ARDF international hunt requirements.

For international modes, ( A1 CW or A2 MCW ) the optional modulator is required, and a strap is required on the MicroHunt transmitter.